Analytical and Experimental Vibration Analysis of Glass Fibre Reinforced Polymer Composite Beam

University essay from Blekinge Tekniska Högskola/Avdelningen för maskinteknik


The aim of this work is to investigate analytical and experimental vibration of composite beam. The composite beam is used as composite footbridge model prototype which is assumed. For the dynamic test, hammer excitation is used to excite the beam at fixed locations. The modal parameters are extracted from the time response using a time domain analysis, i.e. the stochastic subspace identification technique. Finite element models for different boundary conditions are constructed using the commercial finite element software package ANSYS for natural frequencies of the beam to support and verify the dynamic measurements. The result obtained from analytical solution, dynamic tests and the FEM are presented and analysed.

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